5.
Incidence <ul><li>Found in 2-5% of individuals > 65 year old </li></ul><ul><li>Accounts for 1.2% of deaths in > 65 age group </li></ul><ul><li>13 th leading cause of death in U.S. </li></ul>Risk Factors <ul><li>Hypertension </li></ul><ul><li>Smoking </li></ul><ul><li>Family History (20% first degree relatives) </li></ul><ul><li>Male sex (4:1 M:F ratio) </li></ul><ul><li>Advancing age (rare in patients < 50 y.o.) </li></ul>

8.
Presentation of Patients with Ruptured AAA <ul><li>Classic Triad </li></ul><ul><li>Abdominal or back pain </li></ul><ul><li>Pulsatile abdominal mass </li></ul><ul><li>Hypotension </li></ul><ul><li>95% of all patients with rupture have at least 1 of 3 signs </li></ul><ul><li>< 50% of patient with rupture have all 3 signs </li></ul>Treatment is immediate operative repair within minutes

9.
Symptomatic AAA <ul><li>Acute presentation of back or abdominal pain in a patient with a AAA (4.0 cm or greater) without other identifiable etiology </li></ul><ul><li>Often accompanied by a tender aneurysm on exam </li></ul><ul><li>Hemodynamically stable, with no evidence of rupture on CT scan </li></ul><ul><li>Natural history his poorly known, felt to represent impending rupture (hours to day to weeks?) </li></ul><ul><li>Warrants emergent vascular surgery evaluation, usually leading to urgent operative repair within hours </li></ul>Symptomatic AAA = Ruptured AAA